It's usually isn't a good idea to combine the two in one zone. But sometimes it's more practical to do so. I would put a spray in each corner with 12' nozzle, there should be plenty of coverage. As far as gpm 4-1/4circle-12'sprays would use about 2gpm's. And usually your rotors use about 3gpm's each. If your gpm's are maxed with your rotors you can use lower gallonage of nozzles in your rotors, if you change 2 rotors to two gallon nozzles you already give yourself enough gallonage to spare. If y...

Is the well variable speed? I know I have come across some wells where you can actually change how much they pump. Check to make sure you can't adjust it's settings. I believe there are three settings. If the well isn't variable speed, I would just install the system according to the gpm I'm given. I use Rainbird 5000 series sprays (8' nozzles for such a small area) I've never used a booster pump or pressure regulator, I don't know that much about them.

You can just stick the screwdriver between the body of the head and the part that pops up, give it a little lift and then grab it with your hand and pull up. Just so you know those springs are pretty tight so you would have to hold on tight. I've done it this way a few times. Or just get a rainbird screwdriver, they're handy.

I probably would have installed 9 spray heads, but rotors do work in this situation. I would have put the rotors in the corners of the yard. You want to use the 3 gallon nozzles, and adjust as necessary. If you have to turn them down a lot, switch to the 3 gallon low angle nozzles instead.

If you know there is another valve in the same box you can turn on that zone and walk around the yard listening close to the ground. Valves tend to make a little humming. Or do what Ray said that would probably be easier.

I don't think that the 1' would restrict that much, when water is restricted for such a short distance it doesn't lose that much pressure. I'd stick with the one inch. But if you want wait for a second opinion.

That sounds like a pain. But it's possible. If you want the easy route have a profesional do it. If you really want to do it yourself it may be tricky. You need to plug off the end that the hose connects to, dig up the mainline near the water meter, tie into line put in a main valve, blow plug, backflow device, and then find your main sprinkler line and connect into wherever. Finding the best place to tie into your sprinkler main line might be tricky, or it might not. Good luck.

Okay lets go back to the original question - there are some people who install piece of junk systems, they try to put in systems for as low price as they can rather than put in a good quality system. It kind of annoys me to see these people get lots of jobs because they can underbid everyone else. What can I do to help the people we give bids to understand that we may cost a little more but we offer a better quality system? Any ideas on how to tell people this and get them to not think that you ...

Good thinking[], it would be kind of goofy to do all of the other stuff if the mainline is turned off. Don't I feel like a clown![:o)] But if the mainline is on and there is water in the lines, then maybe listen to what I said earlier.[]